Would you like the breathings, too? I think it looks prettier as a tattoo (my sister had something done in Greek and I showed her what she wanted both with and without the accents of the polytonic system and she preferred the latter). I've put it in large so that you can see the accents better:

Thank you, Alfie; yes, I would like it as detailed as possible. BTW, does that 1888 refer to the Bhoys?

The other thing I am looking for is a cool font - something older and romantic rather than new and industrial looking. I have found one tool at fontmeme.com/greek that allows me to pop in text and view it in other fonts. Does anyone know of another one with a few more options?

Or you can use «Ἕλλην ἐν τῷ μέσῳ Ῥωμαίων» ([a] Greek in the midst or Romans). The definite article can be omitted and thus the phrase becomes «Ἕλλην ἐν μέσῳ Ῥωμαίων» (although I think the latter is Koine)

I'm glad someone was able to correct my accentuation. The Polytonic system is still on my list of things to master in Greek! Anyway, with regards to fonts I would suggest going through what's available in Word. My sister's tattoo was in Times New Roman as she liked the curvatures.